Question

earnest has the same or almost the same meaning as: preoccupied unpredictable heartfelt unhappy

Explanation:

"Earnest" means sincere and serious. "Preoccupied" means having one's attention focused elsewhere. "Unpredictable" means not able to be predicted. "Heartfelt" means sincere and deeply felt, which is similar to "earnest". "Unhappy" means sad.

Answer:

C. heartfelt